Apparatus for discharging gas-retorts.



PATENTED OCT. 30, 1906;

lie-834.710.

E. OHBRVET. APPARATUS FOR DISCHARGING GAS VRBTORTS.

APPLICATION FILED FEBJ. 1905.

2 SHEETSSHEET l4 WITNESSES:

No. 834.710. PATENTED: 001. 30, 19061,

B. GHERVET. "APPARATUS FOR DISGHARGING GAS-RETORTS.

' APPLICATION FILED IE13.l. 1905l 2 SHEETS-SHEET 2' UNITED STATES PATENT OFFICE.

EUGENE OHERVET, OF VILLEFRANGHESUR-SAGNE. FRANCE, ASSIGNOR TO CIE.-ANONY1\IE CONTlNENTALE POUR LA FABRICATION DES COMP-- .TEURS A GAZ ET AUTRES AIPAREILS, PARIS, FRANCE.

APPARATUS FOR DISCHARGING eAs-RE'ToRTs.

tion ofa scoop of sheet-iron under the caked mass of coke between this and the bottom of the retort, which then enables the whole of the coke to be withdrawn in a similar manner 'to the action of a bakers shovel for drawing the baked bread out of the oven. This operation, which is ditlicult when applied by hand, becomes extremely practicable when it is el'l'ccted mechanically.

In the machine described herein the scoop is combined with certain mechanical arrangements which have been designed and found specially useful for the mechanical manipulation of coal and coke in gas-works.

These a )paratus for d ischarging the gas-retorts will c readily understood from the fol lowing description, referring to the accompanying drawings, which show several modicoke from the bottom ol" the retort.

tications.

Figure 1 is a side view of the machine. Fig- 2 shows diagrammatically to a smaller scale the same machine arranged for conducting the coke from the retorts to the outside of the retort-house. Fig. 3 shows a machin'c in which the scoop is arranged so as not to be tilted, as in the preceding arrangements. l lg. 4 shows a side view of the chute with variable. inclimition onto which the contents ol the scoop are dlsclnrrgedh Figs. and (3 show a cross-section and plan of the rear end ol the scoop. Fig. 7 shows a cross-section of the scoop with lixed inclination.

The scoop A, having a U-shaped cross-section which is made to correspond as nearly as possible to the internal cross-section oi" the gas-retort, has a front beak A, of steel, which serves to detach the caked mass ol When this scoop has been slid to the end of the retort under the layer of coke, it will'entirely contain the latter. During the backward motion the scoop carries with it the whole Specification of Letters Patent.

Application filed February 1, 1905. Serial No.- 243,640.

Patented Oct. 30, 1906;

of the coke, which is thus withdrawn from the retort. In order that the scoop may be thus successively advanced and withdrawn, itrests upon a sup ort or frame B and fol,-. lows the motion of a chain a, 'assing over guide-pulleys b b and actuated y means of any suitable mechanical transmission. The

chain is fixed at c to the scoop A. It is therefore sutlicient to impart motion to the chain a in one direction or the other for ushing the scoop into the retort or for with rawing it therefrom with its charge of coke. the scoop has returned to its original position with its charge of coke, it SUIIICBS to impart to it a suitable inclination, such as that shown in dotted lines, in order to cause the coke in sliding by its own weight u on the bottomof the scoop to be disc arge either into a conveyor C, as shown at Fig. 1 of the" When drawings, or into a trolley or into 'a wagon situated at a suitable place;

As shown at Fig. 2, the scoo may be tilted so as to be inclined to the si eopposite the retort-furnace in order to discharge the coke out of the retort-house either into a trolley or wagon C or C or into a conveyer. The scoop in that case has its end brought opposite a trap-door in the wall, which is opened at the moment of emptyin the retort, so that the coke can descend Iroln the $000 In order to enable the scoop to be'suitabl y inclined and also to enable it to be raised to the height of the. several tiers ofretorts, it

is requisite to be able to raise it horizontally.

l! or this purpose the support B is guided latorally between two uprights d e, and it is raised by means of chains ff, of which the chain passes over guide-pulleys g g and over a pulley g counterweight I), while the return-chain f passes over 9 and upon the barrel h of a raised winch, which is actuated by means of an electric motor M on the apparatusby means of a belt or other transmission.

While the scoop A is being raised parallel to itself in a horizontahposition, the counterweight 1) descends. W hen it meets a stop at 'i, which arrests its motion, the continued motion of the winch will only ctl ect a pull upon the part 1' oi" the chain, whereby the scoop A is tilted, together with its support,

in a block attached to the and discharge-sat its lower extremity the charge of coke contained therein. The extinguishing of the cokethus withdrawn from the retort can be effected either by any suitable extinguishers placed at C in front of the retort-furnace, or it may be effected in the scoop by means of a s raying-tap E, carried by the machine an upper reservoir F, which is connected to the tap E by means of articulated pipes j j, which allow of the motion of the scoop. The tap E sprinkles the coke, first, during the backward motion of the scoop as it issues from the retort and also when the coke slides down the inclined scoo The extinction of the coke in the scoop aiso has the advantage of cooling the scoop after each discharging operation.

All the mechanical operationswhich e'll'ect the advance and the backward motion of the scoop, its upward or downward rnotion, and its inclination are transn'iitteii' 'by means of endless cables or by toothed gear, with the interposition of clutches operating either with teeth or with friction or electromagnetically, which are operated by hand-levers.

' he scoop may be constructed in various wavsfor exam le with a front beak and solid slides or with a series of bars or strips connected to the front beak and to the rear end and secured together by means ol distance-pieees at intervals along their length, it necessary. 7

Instead of discharging the scoop by causing it to assume an inclined position it may also, as shown at Fig. 3, be discharged by the action of a pushing-block arranged at the end of a pitch-chain, which is mechanically actuated by a suitable mcchanisml'or example, as at Fig. 3, by means of a toothed pinion G, gearing with the chain ll, while. this passes over a drum 1. it will be presently explained how the pushing-block, which terminates the chain ll, and which. thus forms, so to speak, the rear end of the scoop A, can, according to requirements, be fixed to the scoop or be independent thereol'. When the pushing-block or end of the scoop is fixed to the latter, the forward motion of the chain ll in the direction of the arrow pushes the scoop A into the retort, where it is charged with the layer of coke. ln drawing back the chain ll, which is coiled round the drum I, under the action oi" the drivinginion G, the pushing-block draws'the scoop by means of its rear end and causes it to pass out ol the retort with the layer of coke. For discharging from the scoo) the coke which it contains it sulliccs to l()l(l it stationary on the frame to render the pushingblock independent of the scoop and to cause the chain ll'to move forward again. The pushing-block then moves forward in the scoop A and pushes out of it the coke, which falls from the open end thereof into a chute K, the inclination of which can be varied by supplied from an means of a pinion 7r anda toothed sector Z in order that the coke may readily slide upon the chute without assuming too great a speed, so as to avoid the concussion of the coke when arriving at the bottom of the chute, which might cause dust.

The Frame L, which carries the scoo and its actuating-ehain, with pushing-bloc x, can be raised or lowered by-mcans of a suitable actuating mechanism, such as that shown on the drawings, for the purposeof bringing the discharging-scoop A to t 1e level of the various tiers of rctorts.

' Figs. 5 and ti-show in detail how the pushing-block m, which is placed within the rear end of the chute A, can be rendered independent of the chute or be attached thereto. 'lhis pushing-block m, fixed to a stem ll at the end of the chain ll, is situated within the chute in front of its rear wall '11., and the stem ll has a notch o, in which is engaged a lever p, that can turn upon the axis 1 Below this lever 1) is a rod 1', which is movable in the frame ll, carrying the scoop. When this rod is lowered, so as not to enter the hole s, formed in the bottom of the scoop, the scoop A is free and can move in its frame. At the same time the lever is enga ed in the notch 0 ol the stem ll 0 the pus ling-block, and the chain ll can in advancing push the scoop into the interior of the retort facing it. For discharging the scoop the rod 1' is raised, whereby the scoop becomes fixed to its frame. At the same time the rod 1' in risinglilts the lever 1), which assumes the dotted position 2), (shown at Fig. 5,) and the pushing-block m then becomes independent of the scoop A. In pushing forward the chain llthepushingblock m is advanced in the scoop and pushes in front oi it the layer ol coke'. When a pull is exerted on the chain ll after the scoo has been pushed into the retort, the pushingblock m is made to bear against the inner face. of the rear end a, and. thus brings back the scoop into the original position. The inclined chute K, which has been previously described, can also be em loycd for..the discharge of the retorts without the scoop in the ordinary manner--that is to say, by means of a drawing-tool. It only has a fixed inclination which corresponds to the inclination of the retorts ol" the various tiers, as shown at Fig. 4. The side of the chute which faces the heads ol" the retorts is formed, stepped, or notched, as shown at Fig. 4, the parts thereof being arranged with an inclination from the bottom of the chute up to the upper edge, as shown at t t, Fig. 7, so that the horizontal upper edge )asses below the heads of the retorts. The e[ ect of this is that when the coke is drawn by the drawing-tool it falls along the inclined surfaces t t and arrives on the. bottom of the inclined chute K in always Falling through the same distance, no matter what tier; the retort may be in which is being and 5, the latter being on the motor-shaft.

discharged. In this way the cokeis prevented from being broken into dust.

- The moving of the frame L may be conveniently accomplished by the mechanism shown in Fig. 3 ,in which a drum '1 takes up or slacks cables running over guide-pulleys 1 1', thence around pulleys 2 2 on the frame L, and thence to points of attachment; 3 3 at the top of the main frame which carries the drum, the

drum being driven by'means of sprockets 4 Havin now particularly described and as- 4 'certaine the nature of my said invention and 1n what manner thesame is to be performed,

I declare that what I claim is 1. An apparatus for discharging retorts of gas-works orthe like, including in combination a scoop ada ted to be introduced into a retort beneath t e charge of coke, asupport' for said scoop, a chain connected at two points to said support, a winch arranged to raise one portion of said. chain, a weight arran ed to raise the other portion, and a stop for inciting the movement of said weight, whereby the scoop may be tilted.

2. An apparatus for discharging retorts of gas-works or the like, including in combination a scoop adapted to be introduced into a retort beneath the charge of coke, means for" forcing said scoop beneath the charge and then withdrawing it, and means for spraying Water over the charge in said scoop when withdrawn.

3. An apparatus for discharging retorts of gas-works or the like, including in combination. a scoop ada ted to be introduced into a retortbeneath-t e charge of coke, a support for said scoop, a chain, a block within the scoop and connected to the bi ht of said chain so as to permit it to be pul ed forward or backward by the chain, said block adapted to be fixed to the scoop to efiect the advance or withdrawal of the scoo by means of the chain, and to be released om said scoop to permit it to be pushed forward.

4. An apparatus for discharging retorts of gas-works or the like, including in combination a scoop adapted to be introduced into a retort beneath the charge of coke, means for forcing said scoop under the char e and with drawing it, means for tilting sai scoop, and a chute for receiving the coke from the scoop,

said chute bein adjustable in height to avoid 

